Abstract
To investigate the influence of mercury (Hg) mining/smelting on the surrounding soil environment, ninety soil samples were collected around Hg mining/smelting areas in Tongren city, Guizhou Province, Southwest China. The total mercury (THg), methylmercury (MeHg), bioavailability and fractions of Hg in the soil and their potential risk were evaluated. The results showed that Hg mining/smelting significantly increased the soil pH and decreased the soil organic matter content (p < 0.05). The THg content in the surrounding soil was much higher than that at the control site, with almost all the samples exceeding the national standard in China (3.4 mg/kg, GB15618-2018). Similarly, the concentrations of MeHg (0.09–2.74 μg/kg) and bioavailable Hg (0.64–62.94 μg/kg) in these soil samples were also significantly higher than those in the control site. However, the MeHg/THg ratio was significantly lower in mining/smelting influenced soils (0.01–0.68%) than in control soils (0.60–3.72%). Fraction analysis revealed that residual (RES-Hg) and organic matter-bounded (OM-Hg) Hg accounted for more than 50% of the THg. Ecological risk assessment revealed that the potential ecological risk for most of the Hg mining/smelting-influenced soils (30.16 ≤ Er ≤ 2280.02) were higher than those at the control site (15.12 ≤ Er ≤ 27.1). In addition, these Hg mining/smelting-influenced soils posed acceptable noncarcinogenic risks to adults (except for two soil samples), with hazard indices (HIs) ranging from 0.04 to 1.11 and a mean HI of 0.44. However, children suffer serious noncarcinogenic risks, with HIs ranging from 0.34 to 7.43 and a mean HI of 3.10.
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The data used to support the findings of this study are available from the corresponding author upon request.
References
Ahirwal, J., & Pandey, V. C. (2021). Restoration of mine degraded land for sustainable environmental development. Restoration Ecology, 29, e13268. https://doi.org/10.1111/rec.13268
Amponsah, L. O., Sørensen, P. B., Nkansah, M. A., Vorkamp, K., Yevugah, L. L., & Darko, G. (2023). Mercury contamination of two e-waste recycling sites in Ghana: An investigation into mercury pollution at Dagomba Line (Kumasi) and Agbogbloshie (Accra). Environmental Geochemistry and Health, 45, 1723–1737. https://doi.org/10.1007/s10653-022-01295-9
Antoniadis, V., Shaheen, S. M., Boersch, J., Frohne, T., Du Laing, G., & Rinklebe, J. (2017). Bioavailability and risk assessment of potentially toxic elements in garden edible vegetables and soils around a highly contaminated former mining area in Germany. Journal of Environmental Management, 186, 192–200. https://doi.org/10.1016/j.jenvman.2016.04.036
Book China National Environmental Monitoring Centre (CNEMC). (1990). Background Values of Soil Elements in China. China Environmental Science Press.
Chang, C., Chen, C., Yin, R., Shen, Y., Mao, K., Yang, Z., Feng, X., & Zhang, H. (2020). Bioaccumulation of Hg in Rice Leaf Facilitates Selenium Bioaccumulation in Rice ( Oryza sativa L.) Leaf in the Wanshan Mercury Mine. Environmental Science & Technology, 54, 3228–3236. https://doi.org/10.1021/acs.est.9b06486
Chen, H., Wang, Y., Chen, Z., Wu, Z., Chu, X., Qing, S., Xu, L., Yang, K., Meng, Q., Cheng, H., Zhan, W., Wang, Y., & Zhou, H. (2023). Effects of salinity on anoxic-oxic system performance, microbial community dynamics and co-occurrence network during treating wastewater. Chemical Engineering Journal., 461, 141969. https://doi.org/10.1016/j.cej.2023.141969
Chen, Y., Yin, Y., Shi, J., Liu, G., Hu, L., Liu, J., Cai, Y., & Jiang, G. (2018). Analytical methods, formation, and dissolution of cinnabar and its impact on environmental cycle of mercury. Critical Reviews in Environmental Science and Technology., 47, 2415–2447. https://doi.org/10.1080/10643389
Dong, H., Feng, L., Qin, Y., & Luo, M. (2019). Comparison of different sequential extraction procedures for mercury fractionation in polluted soils. Environmental Science and Pollution Research, 26, 9955–9965. https://doi.org/10.1007/s11356-019-04433-6
Du, J., Liu, F., Zhao, L., Liu, C., Fu, Z., & Teng, Y. (2021). Mercury horizontal spatial distribution in paddy field and accumulation of mercury in rice as well as their influencing factors in a typical mining area of Tongren City, Guizhou, China. Journal of Environmental Health Science and Engineering, 19, 1555–1567. https://doi.org/10.1007/s40201-021-00711-z
Fu, S., Li, P., Feng, Q., Li, X., Li, P., Sun, Y., & Chen, Y. (2011). Soil quality degradation in a magnesite mining area. Pedosphere, 21, 98–106. https://doi.org/10.1016/S1002-0160(10)60084-7
Gustin, K., Barman, M., Stråvik, M., Levi, M., Englund-Ögge, L., Murray, F., Jacobsson, B., Sandberg, A.-S., Sandin, A., Wold, A. E., Vahter, M., & Kippler, M. (2020). Low-level maternal exposure to cadmium, lead, and mercury and birth outcomes in a Swedish prospective birth-cohort. Environmental Pollution, 265, 114986. https://doi.org/10.1016/j.envpol.2020.114986
Gyamfi, O., Sørensen, P. B., Darko, G., Ansah, E., Vorkamp, K., & Bak, J. L. (2021). Contamination, exposure and risk assessment of mercury in the soils of an artisanal gold mining community in Ghana. Chemosphere, 267, 128910. https://doi.org/10.1016/j.chemosphere.2020.128910
Habib, M. A., Islam, A. R. M. T., Bodrud-Doza, M., Mukta, F. A., Khan, R., Bakar Siddique, M. A., Phoungthong, K., & Techato, K. (2020). Simultaneous appraisals of pathway and probable health risk associated with trace metals contamination in groundwater from Barapukuria coal basin, Bangladesh. Chemosphere, 242, 125183. https://doi.org/10.1016/j.chemosphere.2019.125183
Hakanson, L. (1980). An ecological risk index for aquatic pollution control. A sedimentological approach. Water Research, 14, 975–1001. https://doi.org/10.1016/0043-1354(80)90143-8
He, Y., Luo, Y., Wei, C., Long, L., Wang, C., & Wu, Y. (2023). Effects of dissolved organic matter derived from cow manure on heavy metal(loid)s and bacterial community dynamics in mercury-thallium mining waste slag. Environmental Geochemistry and Health, 45, 5857–5877. https://doi.org/10.1007/s10653-023-01607-7
Li, D., Zhang, Q., Sun, D., Yang, C., & Luo, G. (2022a). Accumulation and risk assessment of heavy metals in rice: A case study for five areas of Guizhou Province, China. Environmental Science and Pollution Research., 29, 84113–84124. https://doi.org/10.1007/s11356-022-21739-0
Li, H., Li, Y., Tang, W., Liu, Y., Zheng, L., Xu, N., Li, Y.-F., Xu, D., Gao, Y., & Zhao, J. (2022b). Bioavailability and methylation of bulk mercury sulfide in paddy soils: New insights into mercury risks in rice paddies. Journal of Hazardous Materials, 424, 127394. https://doi.org/10.1016/j.jhazmat.2021.127394
Li, X., Liu, N., Meng, W., He, J., & Wu, P. (2022c). Accumulation and health risk assessment of heavy metal(loid)s in soil-crop systems from Central Guizhou. Southwest China. Agriculture, 12(7), 981. https://doi.org/10.3390/agriculture12070981
Liu, H., Qu, M., Chen, J., Guang, X., Zhang, J., Liu, M., Kang, J., Zhao, Y., & Huang, B. (2022). Heavy metal accumulation in the surrounding areas affected by mining in China: Spatial distribution patterns, risk assessment, and influencing factors. Science of the Total Environment, 825, 154004. https://doi.org/10.1016/j.scitotenv.2022.154004
Liu, Y., Delgado-Baquerizo, M., Bi, L., Zhu, J., & He, J. (2018). Consistent responses of soil microbial taxonomic and functional attributes to mercury pollution across China. Microbiome, 6, 183. https://doi.org/10.1186/s40168-018-0572-7
Lou, Z., & Duan, H. (2020). Discussion on characteristics and treatment of waste residue in Wanshan Mercury Mine, Guizhou Province. Environment and Development., 32, 33–35.
Matsuyama, A., Yano, S., Taninaka, T., Kindaichi, M., Sonoda, I., Tada, A., & Akagi, H. (2018). Chemical characteristics of dissolved mercury in the pore water of Minamata Bay sediments. Marine Pollution Bulletin, 129, 503–511. https://doi.org/10.1016/j.marpolbul.2017.10.021
Meng, B., Feng, X., Qiu, K., Cai, Y., Wang, D., Li, P., Shang, L., & Sommar, J. (2010). Distribution patterns of inorganic mercury and methylmercury in tissues of rice (Oryza sativa L.) plants and possible bioaccumulation pathways. Journal of Agricultural and Food Chemistry., 58, 4951–4958.
MEP. (2014). National soil pollution survey bulletin. Ministry of Environmental Protection and Ministry of Land and Resources Beijing.
Naz, M., Dai, Z., Hussain, S., Tariq, M., Danish, S., Khan, I. U., Qi, S., & Du, D. (2022). The soil pH and heavy metals revealed their impact on soil microbial community. Journal of Environmental Management, 321, 115770. https://doi.org/10.1016/j.jenvman.2022.115770
O’Connor, D., Peng, T., Li, G., Wang, S., Duan, L., Mulder, J., Cornelissen, G., Cheng, Z., Yang, S., & Hou, D. (2018). Sulfur-modified rice husk biochar: A green method for the remediation of mercury contaminated soil. Science of the Total Environment, 621, 819–826. https://doi.org/10.1016/j.scitotenv.2017.11.213
Pang, J., Han, J., Fan, X., Li, C., Dong, X., Liang, L., & Chen, Z. (2019). Mercury speciation, bioavailability and risk assessment on soil–rice systems from a watershed impacted by abandoned Hg mine-waste tailings. Acta Geochimica, 38, 391–403. https://doi.org/10.1007/s11631-018-0305-4
Pang, J., Liu, X., & Huang, Q. (2020). A new quality evaluation system of soil and water conservation for sustainable agricultural development. Agricultural Water Management, 240, 106235. https://doi.org/10.1016/j.agwat.2020.106235
Pu, Q., Zhang, K., Poulain, A. J., Liu, J., Zhang, R., Abdelhafiz, M. A., Meng, B., & Feng, X. (2022). Mercury drives microbial community assembly and ecosystem multifunctionality across a Hg contamination gradient in rice paddies. Journal of Hazardous Materials, 435, 129055. https://doi.org/10.1016/j.jhazmat.2022.129055
Qiu, G., Feng, X., Wang, S., & Shang, L. (2005). Mercury and methylmercury in riparian soil, sediments, mine-waste calcines, and moss from abandoned Hg mines in east Guizhou province, southwestern China. Applied Geochemistry, 20, 627–638. https://doi.org/10.1016/j.apgeochem.2004.09.006
Rashid, S., Shah, I. A., Supe Tulcan, R. X., Rashid, W., & Sillanpaa, M. (2022). Contamination, exposure, and health risk assessment of Hg in Pakistan: A review. Environmental Pollution, 301, 118995. https://doi.org/10.1016/j.envpol.2022.118995
Ruan, X., Ge, S., Jiao, Z., Zhan, W., & Wang, Y. (2023). Bioaccumulation and risk assessment of potential toxic elements in the soil-vegetable system as influenced by historical wastewater irrigation. Agricultural Water Management, 279, 108197. https://doi.org/10.1016/j.agwat.2023.108197
Sahoo, P. K., & Dall’Agnol, R., Simões Rolo de Deus, S. do C., Salomão, G.N., Felix Guimarães, J.T., Angelica, R.S., Ramos, S.J., Furtado da Costa, M., & Oswaldo de Siqueira, J. (2023). Mercury in multimedia system of Itacaiúnas Basin, Brazilian Amazon: An integrated approach to understand its distribution, origin, and ecological risk. Environmental Research, 232, 115107. https://doi.org/10.1016/j.envres.2022.115107
Schaefer, J. K., Yagi, J., Reinfelder, J. R., Cardona, T., Ellickson, K. M., Tel-Or, S., & Barkay, T. (2004). Role of the Bacterial Organomercury Lyase (MerB) in Controlling Methylmercury Accumulation in Mercury-Contaminated Natural Waters. Environmental Science & Technology, 38, 4304–4311. https://doi.org/10.1021/es049895w
Sun, H., Zhang, J., Wang, R., Li, Z., Sun, S., Qin, G., & Song, Y. (2021). Effects of vegetation restoration on soil enzyme activity in copper and coal mining areas. Environmental Management, 68, 366–376. https://doi.org/10.1007/s00267-021-01509-3
Tian, L., Guan, W., Ji, Y., He, X., Chen, W., Alvarez, P., & Zhang, T. (2021). Microbial methylation potential of mercury sulfide particles dictated by surface structure. Nature Geoscience., 14, 409–416. https://doi.org/10.1038/s41561-021-00735-y
U.S. EPA. (2011). Exposure factors handbook: 2011 Edition, Washington, DC.
Wang, Q., Wang, D., Li, Z., Wang, Y., Yang, Y., Liu, M., Li, D., Sun, G., & Zeng, B. (2022). Concentrations, leachability, and health risks of mercury in green tea from major production areas in China. Ecotoxicology and Environmental Safety, 232, 113279. https://doi.org/10.1016/j.ecoenv.2022.113279
Wang, W., Su, D., Qiu, L., Wang, H., An, J., Zheng, G., & Zu, Y. (2013). Concurrent changes in soil inorganic and organic carbon during the development of larch, Larix gmelinii, plantations and their effects on soil physicochemical properties. Environmental Earth Sciences, 69, 1559–1570. https://doi.org/10.1007/s12665-012-1990-7
Wen, J., Wu, Y., Li, X., Lu, Q., Luo, Y., Duan, Z., & Li, C. (2021). Migration characteristics of heavy metals in the weathering process of exposed argillaceous sandstone in a mercury-thallium mining area. Ecotoxicology and Environmental Safety, 208, 111751.
Wu, P., Zakem, E. J., Dutkiewicz, S., & Zhang, Y. (2020a). Biomagnification of methylmercury in a marine Plankton ecosystem. Environmental Science & Technology, 54, 5446–5455. https://doi.org/10.1021/acs.est.9b06075
Wu, Q., Hu, H., Meng, B., Wang, B., Poulain, A. J., Zhang, H., Liu, J., Bravo, A. G., Bishop, K., Bertilsson, S., & Feng, X. (2020b). Methanogenesis is an important process in controlling MeHg concentration in rice paddy soils affected by mining activities. Environmental Science & Technology, 54, 13517–13526. https://doi.org/10.1021/acs.est.0c00268
Xia, J., Wang, J., Zhang, L., Wang, X., Yuan, W., Peng, T., Zheng, L., Tian, W., & Feng, X. (2022). Migration and transformation of soil mercury in a karst region of southwest China: Implications for groundwater contamination. Water Research, 226, 119271.
Xiang, M., Li, Y., Yang, J., Lei, K., Li, Yi., Li, F., Zheng, D., Fang, X., & Cao, Y. (2021). Heavy metal contamination risk assessment and correlation analysis of heavy metal contents in soil and crops. Environmental Pollution, 278, 116911. https://doi.org/10.1016/j.envpol.2021.116911
Xiao, R., Wang, S., Li, R., Wang, J. J., & Zhang, Z. (2017). Soil heavy metal contamination and health risks associated with artisanal gold mining in Tongguan, Shaanxi, China. Ecotoxicology and Environmental Safety, 141, 17–24. https://doi.org/10.1016/j.ecoenv.2017.03.002
Xu, Z., Lu, Q., Xu, X., Feng, X., Liang, L., Liu, L., Li, C., Chen, Z., & Qiu, G. (2020). Multi-pathway mercury health risk assessment, categorization and prioritization in an abandoned mercury mining area: A pilot study for implementation of the Minamata Convention. Chemosphere, 260, 127582. https://doi.org/10.1016/j.chemosphere.2020.127582
Yan, J., Wang, C., Wang, Z., Yang, S., & Li, P. (2019). Mercury concentration and speciation in mine wastes in Tongren mercury mining area, southwest China and environmental effects. Applied Geochemistry, 106, 112–119. https://doi.org/10.1016/j.apgeochem.2019.05.008
Yang, L., Ren, Q., Zheng, K., Jiao, Z., Ruan, X., & Wang, Y. (2022). Migration of heavy metals in the soil-grape system and potential health risk assessment. Science of the Total Environment, 806, 150646. https://doi.org/10.1016/j.scitotenv.2021.150646
Yin, R., Feng, X., Wang, J., Li, P., Liu, J., Zhang, Y., Chen, J., Zheng, L., & Hu, T. (2013). Mercury speciation and mercury isotope fractionation during ore roasting process and their implication to source identification of downstream sediment in the Wanshan mercury mining area, SW China. Chemical Geology., 336, 72–79. https://doi.org/10.1016/j.chemgeo.2012.04.030
Zhang, X., Tian, K., Wang, Y., Hu, W., Liu, B., Yuan, X., Huang, B., & Wu, L. (2023). Identification of sources and their potential health risk of potential toxic elements in soils from a mercury-thallium polymetal. Science of the Total Environment, 896, 161774. https://doi.org/10.1016/j.scitotenv.2023.161774
Zhao, L., Anderson, C. W. N., Qiu, G., Meng, B., Wang, D., & Feng, X. (2016). Mercury methylation in paddy soil: Source and distribution of mercury species at a Hg mining area, Guizhou Province, China. Biogeosciences, 13, 2429–2440. https://doi.org/10.5194/bg-13-2429-2016
Zheng, S., Wang, Q., Yuan, Y., & Sun, W. (2020). Human health risk assessment of heavy metals in soil and food crops in the Pearl River Delta urban agglomeration of China. Food Chemistry, 316, 126213. https://doi.org/10.1016/j.foodchem.2020.126213
Zhu, D., Wang, Z., & Zhang, Z. (2023). Effects of heavy metal pollution and soil physicochemical properties on the Sphagnum farmland soil microbial community structure in Southern Guizhou, China. International Journal of Phytoremediation. https://doi.org/10.1080/15226514.2023.2191139
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We would also like to thank the Henan Dabieshan National Field Observation and Research Station of Forest Ecosystem.
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This work was supported by Science and Technology Development of Henan Province China (222102110359); Natural Science Foundation of Henan Province (232300420163); Open Funding Project of National Key Laboratory of Human Factors Engineering (614222210022213); the Key Project of the Science and Technology Research of Henan Provincial Department of Education (23A610013); the Science and Technology Program of Guizhou Province (QKHJC-ZK[2021]224). We would also like to thank the Henan Dabieshan National Field Observation and Research Station of Forest Ecosystem.
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All authors contributed to the study conception and design. Ming Chen and Yuke Kong wrote the main manuscript text; Wenxiu Zheng and Jinhui Liu prepared figures. Above authors participated in corresponding experiment, Yong Wang and Yangyang Wang reviewed and edited the manuscript. All authors reviewed the manuscript.
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Chen, M., Kong, Y., Zheng, W. et al. Accumulation and risk assessment of mercury in soil as influenced by mercury mining/smelting in Tongren, Southwest China. Environ Geochem Health 46, 83 (2024). https://doi.org/10.1007/s10653-024-01860-4
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DOI: https://doi.org/10.1007/s10653-024-01860-4